Now available are these FC RX7 BC Racing type RA coilover kits featuring 30 levels of damping force adjustment, combined with full length height adjustment allowing an extremely low ride height.This utilizes enlarged shock absorber cartridges with specially designed shock pistons and rods to provide a broad range of damping force. The beveled edge design on the lower locking ring ensures and optimum seal with the lower mount and prevents the lower locking ring from unseating. Features: - 30 Level Damping Force Adjustment - Height Adjustment System - Enlarged Cylinder & Newly Developed Piston - Exclusively Designed for Each Application - Anodized Alloy Casing - CNC Machined - T6061 Alloy Locking Ring - SAE9254 Steel Racing Springs - Monotube Design For Maximum Performance - Fully Rebuildable - 12 Month Warranty Suits Mazda RX7 FC 1986-92